Steel structure material is high quality carbon steel which is accordance with national standard. Steel parts and fasteners are processed according to “GB/T1912-2002 Technical Requirements and Test Methods of Hot-galvanized Layer for Metal Coating Steel Production”. Inside and outside hot galvanized steel should meet the national standard (GB/T3091-93) requirements of quality products. Galvanized layer should have thickness uniformity, no burr, and the galvanized layer thickness is not less than 60um.
Name: double layers polycarbonate sheet
Thickness: 8mm or 10mm
Polycarbonate sheet has the following characteristics:
(1) light: light transmission rate of up to 89%, which can be compared with the glass.
(2) impact resistance: the impact strength is 250-300 times of ordinary glass, 30 times of the same thickness of acrylic board, 2-20 times of fiber glass.
(3) anti UV: one side has the anti-ultraviolet ray (UV) coating, the other side with anti condensation coating.
(4) light weight: the proportion is only half of the glass, saving the cost of transportation, unloading, installation, and supporting framework.
(5) flame retardant: national standard GB50222 - 95 confirmed that the PC sheet is B1 level.
(6) flexibility: at the site it can be bent coldly.
(7)sound insulation: sound insulation effect is obvious.
(8) energy saving: in summer keep cool, in winter keep warm.
(9) the temperature adaptability: it does not have the cold brittleness at -40℃, and not soften at 125℃.
(10) anti condensation: outdoor temperature of 0℃, indoor temperature of 23℃, the indoor relative humidity less than 80%, inner surface has no condensation.
(11) simple and convenient, not as heavy as traditional materials.
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